Home / 1,238,374.36-1,707,374.63-802,020.78

Finding the Fourth Proportional to 1,238,374.36, 1,707,374.63 and 802,020.78

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Solution

The fourth proportional to 1,238,374.36, 1,707,374.63 and 802,020.78 is: 1,105,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,374.36 : 1,707,374.63 = 802,020.78 : x
  2. Step 2: Convert to fraction form
    1,238,374.36/1,707,374.63 = 802,020.78/x
  3. Step 3: Cross multiply
    1,238,374.36x = 1,707,374.63 × 802,020.78
  4. Step 4: Simplify right side
    1,238,374.36x = 1,369,349,932,504.81
  5. Step 5: Solve for x
    x = 1,369,349,932,504.81/1,238,374.36
  6. Step 6: Final answer
    x = 1,105,764.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.